Means of phasing



Jan. 27, 1931.

R. HOOVER ETAL MEANS OF PHASING Filed Aprlil 29. 1950 2 Sheets-Sheet 1 Jan. 27, 1931.

R. HOOVER E'r AL 1,790,150

MEANS OF PHASING Filed April 29, 1930 2 Sheets-Sheet 2Y B POLAR RELAY |60 OR 240V.

TQ LDNE L Patented Jan. 27, 1.931

RAY* HOOVER, 'or NORTHY rLAINFInLnANEW' JERSEY,Y AND ROBERT-n jninigns, oF l JAMAicaNEW Yoan, Assrenons Tor-HE W:aszrrlinenY UN-10N;TsLnenAPHfeoiarnNY;

i `F NEW'YORK,'N. IY.; A: CORPORATION VOE YORK I oF-PHAS'ING :LY

` Appiicatin'ie April 29,

This -invent-ion'relates toa telegraph transmission syste-in and; more particularlyfto La multiplex telegraph systemfortransmitting phasinglsignals to telegraph linesfcr use in @D establishingy thecorrectfphase relationship between the transmitting and receiving disjingjtheproper phase relation vbetween'the receiving and transmitting distributors and alsov to Atransmit rapid .current reversals vor alternating current`r impulses forr` use in obtaining a balance between the artiiicial and v real linesof adupleir system..V A j Heretofore it `lias been necessary to :disconL Y tinue the operation'of-thetape or other trans.- mitter While sending the.v phasing signals over the line. Accordingto the'usnal system eniployed, all of the tape transmitters `.operating into the multiplex` distributoraije. locked up l so as to send only spacing signals, with the exception of one contact of one of thetransf ,mitters which' is arranged to apply marking f Apotentials*to one of the sending u segments wherebya single. marking v inipulse- .is transmitted to theI linefor each revolution of the distributor brush. t Y v l Similarly, inthe transmission of the balanei-ng or alternating-currentiinpulsesto the lii-iej it isthe customary prac-tice ite disconnect .the send-ing;-seginents` from the tape trans -niitter andconnect theni-tofabalancing yor alternating current t. block which applies potential -oiffpostve-pelarty tolta-Ch alternate 1930.; segni NOL 448,265. l'

sendin i' se ineiitmandkY otentialof neative.

polarity tothe remainingfsendingsegments.

so that positive and negative impulses f are transmitted alternately-tothe line astlie' distributor brush "passesfovefr the sending seg- Itiiill be 'appreciated fromthe Y foregoing goingY lines` that theti'fansinission,tolalllines phasing e one ofthe lines.

` In a copendingapplication; -Nol 446,630, fiidjiipai 2s, i930, d yensued iiiultipleXV lines7 We li1ai1e--shown an arrangement permitting the V traiisiiii'ssiion of balancing signals or'curijent reversals .trianyy oi'ifeffV or morev of'a' numberof lines associatedjvith Y y a single distributor Without interrupting the transmission ofY vintelligence signals to the remaining lines',

rlhe present iiiventioiihas forv one Gif-itsVv` i* ohJects to produce' a in, ltiplex telegraph sysv teniY utilizing single or `master distributor for" transmitting simultaneously.' toftWo or morelines in which phasing signalsinatY be transmitted to any one or moreofthe lines W-ithoiit .int errup'tingA the transmission of intelligence signals ytothe remaining lines.

' liiiotherA object e isto.' provide a. distributor having facilities for simultaneously transmitting intelligence signals to one or more lines and forftransmitting phasing signals to otherl lines. I

that Wherea singlejtransinit'tiiig distribu toiY` Y iseinployed to send toa large-,number of otit- V A s tilljfur/ther object is to provide.- a: disi ytriloutoij having facilities independent ofthe intelligence-signals sending rings for trans- Ainitting phasing signals to thegflines -associated therewith. Y

Y Othervfobjects and ina-terappear. Y j d The-inventOn-will b vdescribed v With :par-

ticular reference to the accompanying drawtion of the apparatusemployedf for trans.

ingsfin whichA y VFigure 1 is a diagrammaticgview of a transmitting apparatus embodyingour invention, andV Y 'Y Figure 2 is a diagrammatic'view of a pormitting current reversals showing the relai tion thereof tothe-apparatusemployed in the embodiment show ninFigure 1.`

rllhe transmitting distributor shown in Figure 1 comprises Aa pair of sending rings and Aapair of local irings, the distributor beingY arranged for two channel multiplex operation. The'sending rings comprise. a solid Y ring 10V and a segmented ring 11, theilatter having segments numbered 1 to-12, *The segments 1 to 6 vare connected by a Y group of conductors 12'to the contact tongues'13o1 a tapek transmitter 14 -operatinginto channel A of the multiplex system, and segments 7 to 12 vare 1similarlyconnectedby a group'oit i conductors 15 to thecontactsi of atape trans-v and a segmented ring 1Y8 having segments 1 to 24. Segments h,2, 3 and 4 of ring 18,are connected by a conductor 19 to the operating magnet 2() of the B channel `tape transmitter 16 andthe local'segments 14,15 and 16 are connected by conductor 21 to theoperating l magnet 22 of the A channel transmitter. The

relation of these segments tothe segments ol" the sending ring is such that the operating f magnet of one transmitter is operated to set up a new code combination while the code combination previously setup by the other transmitterbeing transmitted tothe line.

VIn accordance with our .invention .we ntiliZe certain of the remaining segments of the local ring 'fmproducing phasingisijgnals for 'transmission tothe line and arrangethe transmitting relays softh'at` phasing signals may be transmitted to any fone or moreof a number of lines associated with `the r,distributor without interferingwith the transmission oi intelligence. signals to the remain- .ing lines.

The' Siid's'endingfriiig io'is einen by conductor 24 vto thev series windings A. and B of apolarized transmitting relay 25, the opposite terminal of the windings being connected to the ground at 26 through resistance R1. The marking andspacing contacts of relay 25 are connected to negativeand positive battery respectively and the tongue 27 is joined by a conductor28 to contact spring b of a-pin jack 29.v Thev duplex line L has its apex connectedrto a spring cl of jack 29 sothat when spring b is depressed bythe insertion of a solid pin in the jack, contact isv made between springs b' and d to connect the tongue 27 of relay 25 to the duplex line.

The phasing segments 23 and 24 of local `ring 18 are connected to spring b of a jack 30 andvsegment 1 of ring 18 yisc'onnected to sleeve e ofthejack 30. Theslecve e is also connected through a resistance R to a source fof positive potential," andthe tip springa of the ack 30 is connected to theseries windings .C and D of a polarized relayr31, and thence to the ground 32, through resistances R3 and R2.

The marking andspacing conta-cts of relay 31 are connected to negativeA and positive battery respectively, and the relay tongue 33 is connected to spring c 'of jack 29. r

When it is desiredto transmit intelligence signals directly Jfrom the sending rings V1() and 11 through the polarized relay 25 to the duplex line, a solid pin 35r is inserted in ack 29, lthusy breaking the contact' betweenv the springsc and'cl of jack 29 and making contact ,between the spring b and CZ, and/thereby connecting the' tongue27 lo-flrelayi25 tothe i duplex line.-

i The 'phasing segments23a'nd'24 andqseg inentv1 of ring 18 may be connected by groups of conductorsv 36`and 37 to the corresponding jack 3070i any desired numberof duplex lines and the solid sending ring 10 may alsobe connected by a group of conductors 38 .to the relays 25 of other duplex llines soas to enable the saine intelligence signals to be trans! mitted bythe single distributor to each of the y duplex lines.

l The rotation of thefsfcnding brush over the sending rings of the distributor causes fthe codecombinations set up' on'tli'ejsegments to be transmitted through thepolarizedfrelay 25 directly to the duplex line.

If it vis desired `to transmit phasing signals over the line, the" solid pin 35V isv reinovedfromthe jack 29 to establish the lconnections shown in Figure 1,"thus'disconnecting the dupleXline from ythe tongue of the relay 25 and connecting it to the tongue of relay-,31. Intelligence signals generated at Vthe Vsending ringswill'operatethe tongue of therelay 25 but will not be repeated into the duplex line. However, upon veach revolution of the brush vover the local rings the circuit from the phasing' segments 23 and 24 vis completed through springs?)` and '0l of jack 30 to the windings A and B ofthe polarized relay 31 and to ground, thus moving Vthe tongue of the relay'j 31 to its marking Contact and transmitting'a marking signal to the duplex line. r`As the brush leaves'the phasing segmentsit engages segment 1 'of the local ring 18`thns completing a circuit through the sleevel 'andtip springs of jack 30" tetlei series windingsg@ y"and" "Doff relay Y fil', in such direction as to return `tlie` tongue V33 to itsspaeingcontact.' Y Thetongueis held: onf its spacingfcontagct duringa passageof the. local brush over the tery supplied th-rouglif-resistance-RQ Theresistance R -i's=of"such value as to-Yre'ducethe holding current so thatitl is readily overcome ployed at the receiving station. for estab-fA lishing the'correct -phase relation of the vreceiving and transmitting distributors. v

It will be noted thatthe arrangement is such that any one of the duplex lines may be disconnected from the tongue of the relay and connected to the tongue of the relay 3l, soV as to transmit phasing signals to some of the duplex lines without interfering in any way with the transmission,ofintelligence signals over the remaining lines.

It will be understood that in .order to peri form these functions, the j ack 3-Omay vbe dispensed with and the connections "from the phasing `segments made directly to the vwindings of the yrelay 3l, and in place ofthejack 2 9, a simple switch may be Iemployed. ,How-

ever, the jacks perform the additionalcfu'nction of permitting balancing signals or current alternations to be transmitted as described in the above mentioned copending application, so that by proper manipulation of the solid pin 35 it is possible to simultaneously transmit intelligence signals .over certain lines,l balancing signals over other lines, and phasing signalsover still other lines. 1

The arrangement for permitting-the transmission of the balancing signals selectively,T with the phasing signals is'shown in Figure 2. For this purpose an extra set of rings is provided for the distributor for generating the current alternations. These A C sending rings comprise a'solid ring 40 and a segmented ring 41, the latter yhaving segments corresponding in number to the segments of the sending ring l1. joined to the spring c of jack and through spring d to the windings A and B of relay 3l. The even numbered segments of ring il are strapped together and connected to a source of negative potential, and the odd `numbered segments are similarly strapped l A together and connected to a source of posi- Yeo tive potential. n l v o With the solid pin removed from jack 30 as shown in Figure 2,y the alternate positive and negative impulses are impressed on the windings A` and B as'the brush of the A C sending rings passes over. the segments The solid ring 40 isthereo-, to'Pfcaus-e theitongue 33l ofthe relay toosci-rllate between its marking and spacing contactsjand transmit current reversals to the duplex line through the contacts ,ofjj'ackx- 2,94* It:willrbe-appreciatedthatfthej ring 40 ,U l,

is 'connected :torthejack of each of the duplex lines,v as byfa .group ofI conductors l52,fso that the balancing V signals `may, vbe transmitted to any one ofthe''lines'while either intelligence or phasing ksignals arel being transmittedto the remaininglines. i

YIt-is obvious that` various' changes mayY be made `in ithe; circuit varrangement without departing' from the invention 'and We do' not desire vtofb'e restricted` to the specific details 80 shown and described', except i-naccordance Y `witlizth'e:appended claims. Y. f Y'What-*We claimde:

1.- In a tellegraph'system," a rotary distributor having an' intelligence signal? ring and Y ampliasin'gsignal ring, the latter ring having Y means -forgeneratmg a-marklngsignalduring a 'portion of ieach; revolution; of the distribu-l torjbrush,andarspacing signal during the re-v ,maindero'the'revolution, a-plurality of lines lassociated with said' distributor, land means. for: transmitting intelligence signals lto `allor apartofsad flines and for transmitting phasing signals to the-"remaining lines.'r`

v2.5111 a multiplextelegraphsystem, rop-r tary. distributorhavingQla-n intelligence signal ring and a phasing s1gnalr1ng,arelay :assolmarea* with "the 1a-rter -ring having opposed windings, mea-ns for "energizing fone of said windingsduringai portion or le'ae'h revolution" 'ofi'the distributor"brushfto operate' Ysaid relay fto one Vof its positions,

meansfor energizing me f the :zot-heir windingfduringL a. further 'portion v relay "to its Vother position, and' means tfor holding -the' relay in 'the' latter Vposition :durm-gl the remainderfotfth'e revolution l ofthe y inl a m1-apiex-teiegraph .Syst-em, afro- `ti'o'I-rfto produce' a `phasing signalf of "definite nature,neansfincluding an adjacent segment `olii/'said r`ringfforoperating-'said vrelay,V in theVV opposite-direction Vto kproduce phasing signalofaldiierentnature, means for holding said-relay in saifdl latter position after the Ybrush leaves said segment, an outgoing o line andmea-ns for?transmitting:either phasing vor intelligence signals to said line. y

4. Infer-multiplextelegraph;system, arroo tarydistributor 'having an intelligence signal ring and a-'phasingfsignal' ringa pluralityof lines; yan intelligence signal transmitting Irelay foreach/line, associated with: said intel- "ligencefsignal ring,v to. iproduce intelligence signals, a' phasing signal transmitting relay fri) Yfor each line, means: eomprisingsegments of said distributor for operatinglsaid phasing signal relay toone position, means including an adjacent segmentofsaid distribntdr for' operating the relay to lits opposite'position, and `biasing means toi-holding said Irelay m the lauterv position-during the transitionnof said 4brush over the remaining segments 'ot the phasing signal ring;

5.-In Jtelegraph system, rotary distrib-` utor liavinga pliasingsignal ring comprising a marking signal segment, a 'spacing signal segment-,and a plurality of local segments,

means tor transmitting a marking signal during the-passage ot the distributor bri'ish'over 1,790,150' i Y i C ing segments for :generating phasing signals once eaoli ,revolution ofA the]V distributor brushes,.a plurality of lines associated With said distributor and means Yfor transmitting said intelligence signalsto allor a part-0f signals tofthe remaining lines. v l Y In ,testimony whereof We "aiiix our signatures. f if I. v 'Y RAY HOOVER.

ROBERT DIRKES.Vl

the marking segment, means'fertransmitting Y i a spacing signal during-the passage ofthe brush over the spacing segment, and means yindependent of said distributor for centinuing said 'spacing signalvvduring the passage `oi the brush oversaid local segments.

6. In a telegraph system, a rotarydistributoihaving a phasing signal ring, phasing vsegmentsand local ,segments on said ring, a

phasingV .signal transmittingAVrela-y; a line, means for operating said relay to'transmit a phasing signal over said line during lpassage ,ofthe distributor brush over the phasing signal segments, 'and means independent of said ring for maintaining the relayA in definite position during passage of the brush over the flocal segments. i y I 7.111 a telegraph system, arotar'yVv distribsaid lines and v:for 'transmitting said,y phasing brusli over the phasing segments, means inv dependent of said'ring tormaintaining the relay in deiniteposition during the passage of the brush over the localfsegments, a plurality of lines associated'vvith,saidfdistribfutor, and means for transmittingy intelligence signa-ls to all orapart of said lines and for Y transmitting phasingV signals lth'ioughsaid f relay to the remaining lines.

. V8. Ina multiplex telegraph system, a rotary distributorhaving means for transmitting intelligence signals toa multiplicity of-lines," 1 and means for simultaneously transmitting a single'phasing signal to other lines during `each revolution ot the distributor fbrush.'

f 9. In a telegraph system, a transmitting distributor having an intelligencesignal ring and a phasing signal ring, a plurality oit lines yassociated With each of saidringsand means i for selectively:distributing` signals from either of said rings to any of saidlines.

10.4 In a telegraph system, aj transmitting distributor khaving van,` 'intelligencei signal ring, a transmitter associated with said ring for setting upA signal combinations, on the v Asegments thereof, alocal ring havngphasli120 l. 

